extremophile writes:
There are organisms that could survive, or at least, significant parts of organisms (such as DNA) that could infect other planets and spread?
Remember that whatever part(s) of an organism must also survive entry into a planet's atmosphere and the impact onto the planet. Although this is somewhat outside of my field, I'd be surprised if we do find anything that could survive (1) the vacuum of space, (2) the extreme temperature of atmospheric entry, and (3) it's impact on the planet.
For goodness's sake, please vote Democrat this November!
Why? Bush is a right wing nutcase.